GeForce 8500 GT vs GeForce GTX Titan

Intro

Compare those specs to the GeForce GTX Titan, which makes use of a 28 nm design. nVidia has clocked the core frequency at 837 MHz. The GDDR5 RAM runs at a speed of 1502 MHz on this particular card. It features 2688 SPUs as well as 224 Texture Address Units and 48 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 8500 GT		45 Watts
GeForce GTX Titan		250 Watts
	Difference: 205 Watts (456%)

Memory Bandwidth

The GeForce GTX Titan should in theory perform much faster than the GeForce 8500 GT in general. (explain)

GeForce GTX Titan		288384 MB/sec
GeForce 8500 GT		12800 MB/sec
	Difference: 275584 (2153%)

Texel Rate

The GeForce GTX Titan is much (about 5108%) faster with regards to anisotropic filtering than the GeForce 8500 GT. (explain)

GeForce GTX Titan		187488 Mtexels/sec
GeForce 8500 GT		3600 Mtexels/sec
	Difference: 183888 (5108%)

Pixel Rate

The GeForce GTX Titan should be a lot (about 2132%) better at FSAA than the GeForce 8500 GT, and also should be able to handle higher screen resolutions more effectively. (explain)

GeForce GTX Titan		40176 Mpixels/sec
GeForce 8500 GT		1800 Mpixels/sec
	Difference: 38376 (2132%)

Please note that the above 'benchmarks' are all just theoretical - the results were calculated based on the card's specifications, and real-world performance may (and probably will) vary at least a bit.

Price Comparison

Specifications

Memory Bandwidth: Bandwidth is the largest amount of data (measured in megabytes per second) that can be transferred past the external memory interface within a second. It's worked out by multiplying the card's interface width by its memory clock speed. If the card has DDR RAM, the result should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be processed per second. This number is calculated by multiplying the total amount of texture units by the core speed of the chip. The better this number, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

Pixel Rate: Pixel rate is the most pixels that the graphics card can possibly write to the local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate is also dependant on quite a few other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.